Saliva or saliva in scientific language known as Saliva is a clear liquid that is produced by the human and several animal species. In saliva or spit it contained several elements, among others, are electrolytes containing Sodium, Potassium, Calcium, Magnesium. Mucosa and Glycoproteins containing mucopolysaccharide, antibacterial compounds and various enzymes.

According to the research team of the American Federation Societies for Experimental Biology (FASEB)
Benefits of saliva by the research team identified a compound in human saliva that speeds wound healing, according to their report published in The Journal of the Federation of American Societies for Experimental Biology (FASEB).

The research team found that "histatin", a small protein in saliva previously only believed to kill bacteria was responsible for wound healing.

This research may offer hope to people suffering from chronic wounds related to diabetes and other disorders, as well as traumatic injuries and burns. In addition, because the compounds can be mass produced, they have the potential to become as common as antibiotic creams and rubbing alcohol.

"We hope our finding is ultimately beneficial for people suffering from non-healing wounds, such as foot ulcers and wounds caused by diabetes, as well as for treatment of injuries resulting trauma such as burns," said Menno Oudhoff, the authors laporab "

"This study not only answers the question of why animals lick biology of their injuries," said Gerald Weissmann, MD, Editor in Chief of The FASEB Journal.

"It also explains why wounds in the mouth, like those of a tooth extraction, heal much faster than comparable wounds of the skin and bones. Was also directs us to begin looking at saliva as a source for new drugs."

Saliva can also be used to reveal the identity of a person because of it can be obtained saliva samples for DNA, although the DNA saliva cells but the cells of the lining of the mouth can be found in the saliva samples. Saliva may provide clues what has been eaten and drugs that may be consumed.

Saliva also serves to assist in the digestion of food in the mouth, such as food and clean up the dead cells in the mouth, tying it into a ball of food that can be swallowed, clean up the leftovers and bacteria from the teeth, preventing the lining of the oral cavity becomes dry, crush or prevent mold growth in the mouth, neutralizing acids from the food you eat, and help foster a damaged tooth enamel due to calcium and phosphorus levels.